ANCEL L300 Smoke Machine Automotive Built-in Air Pump, 2024 Professional Smoke Machine Leak Tester with Digital Pressure Gauge, EVAP Vacuum Exhaust Pipe System Diagnostic Tester for All DC12V Vehicles

ANCEL L300 Overviw

2 Work Modes: Air Mode & Smoke Mode
Vacuum (negative pressure) test
Holding pressure test
Temperature control protection
Liquid Level Window
Output Pressure: 0.8-1.2bar
Gas supply method :Built-in air pump
Mechanical flow meter
Digital pressure board/digital pressure gauge

Technical Details

Brand:    ‎ANCEL
Model :‎L300
Item Weight:     ‎4.95 pounds
Package Dimensions :‎10.04 x 10 x 6.97 inches
Item model number :L300

Package List
Power cable *1
Hooks *1
Smoke Conduit *1
Funnel *1
1” Snare Drum *1
1” Snare Replacement Rubber *1
Tapered Air Inlet Adapter (with Tube)
Tapered Rubber Adapter (3 pieces)
Smoke Column Test Kit

ANCEL L300 Smoke Machine Features

    ✅【UPGRADE 1-DIGITAL PRESSURE GAUGE】The L300 is the latest advanced automotive smoke machine introduced by ANCEL in 2024. Digital pressure gauge design offers more accurate data compared to traditional mechanical pressure gauge. It can provide precise readings in multiple units(Psi, bar, kpa, kg/m), helps you effectively monitor pressure changes in real-time while performing leak detection. With ANCEL L300, you can detect all types of leaks like vacuum pipe leak,crankcase air leak, intake pipe air leak, exhaust pipe air leak, throttle air leak, fuel tank air leak, various connectors air leak, window air&water leak and even the tiniest of leaks

    ✅【UPGRADE 2-VACUUM(NEGATIVE PRESSURE)TEST】Traditional mechanical pressure gauges cannot display negative values, making it difficult to accurately detect leaks in some negative pressure environments. The L300 smoke tester's digital pressure gauge can display both positive and negative values. The normal output voltage is between 0.8-1.2 bar. When detecting negative pressure environments such as vacuum pipes, the closer the negative value is to 0, the more severe the leak is. When detecting positive pressure environments, the lower the positive value is below 0.8 bar, the more severe the leak is. The pressure unit can be set according to personal preference

    ✅【UPGRADE 3-SMOKE COLUMN TEST】The L300 car smoke machine has a specially added accessory, the "smoke diffuser" . Simply set your vehicle to the recirculation mode and connect the supply hose nozzle to the diffuser, it can evenly disperse smoke in a column-like shape. The smoke then moves along the sealed components being tested. If the smoke column is distorted or dispersed, it indicates a leak. This process highlights the dispersion of smoke to aid in locating the leak point, making the issue easier to identify

    ➿【AIR & SMOKE DUAL WORKING MODES】Switch modes with one button. In air mode, this evap smoke leak detector can determine if there is a leak in the system by detecting the gas concentration in the air. In smoke mode, it can locate and detect leaks in the whole system of the car by generating visible smoke, and with the adjustable flow meter, it can control the amount of smoke in real time. Highly improves the accuracy and efficiency of the detection

    🛡️【SAFE TO USE】Made of stainless steel, resistant to impact and wear; Exclusive isolated heat transfer technology with overheat and anti-frost protection; No need to start the car, allowing for convenient operation at any time; Lightweight and compact, easy to hang and causing no excessive burden on the vehicle; Non-toxic smoke, harmless to both the vehicle and human. Ensure a safe and user-friendly experience when using the automotive smoke leak tester

    💨【EASY TO USE WITH BUILT-IN AIR PUMP】Simply pour in the smoke oil, connect the 12V power supply,and press one button to start, instant and odorless smoke will be generated. This smoke tester automotive comes with a built-in air pump, eliminating the need for additional purchases. The back is designed with a visible window, allowing you to observe the position of the oil at any time. 🚩Please note the oil should not be overfilled, keeping it between the min and max values

Generic Operation
1．Mount the hook on to the unit.
2．Mount the shop air adapter to the unit (For the model without built-in air pump inside).
3．Plug the power cord into the socket.
4．Screw on the smoke hose to the unit.
5．Fill (mineral Oil based) smoke oil into the unit from the refill port on the top.
 Note: The oil level shall not exceed the level gauge.
6．Connect shop air supply (For the model without built-in air pump inside).
7．Connect 12V vehicle power.
8．Introduce shop air to the unit (For the model without built-in air pump inside).
9．Turn the Flow Dial (if equipped) anti-clockwise to open the air flow.
10．Switch on the power or the mode selector button, then the unit will start to work.
11．Introduce smoke into the system.
12．The system will be ready for leak check in 2 minutes. Use a bright light torch or working lamp to assist.
13．After test, switch off the power or the mode selector button, then the unit will start to work. 
14．Collect the Smoke Hose and the Power Cord with the Velcro Straps for storage.
15．Hang the unit or make it stand in UPRIGHT position only. Do NOT lay it down.

Knowledge for Fuel Vapor Recovery System (EVAP) 

1．According to the Environmental Protection Agency, the EVAP system is the most neglected of all the emission systems in an automobile. A leak as small as 0.020” diameter can allow over 30 times the allowable hydrocarbons into the atmosphere then is currently acceptable through the exhaust. Additionally, EVAP system leaks can be a major cause of check engine lights occurring. In the past, EVAP related problems have been difficult to locate and repair. These can now be quickly diagnosed and repaired, becoming a profitable ticket for service facilities. 

2．There are several acceptable methods of inspecting the EVAP system. Basically we need to close any vent solenoids, fill the system with smoke, and look for the smoke escaping at the leak. Since these systems vary in different vehicles and have evolved over the years, we will attempt to describe operating guidelines that should be helpful in inspecting these EVAP systems. 

3．Beginning with the 1996 model year, U.S. Vehicles have been produced with an EVAP Service Port to access this system. The port is usually located under the hood, but may be located else were on the No Leak Small Leak Massive Leak Flow Meter drop to ‘0’ and pressure reading raise to Max. Flow Meter stay between 0.1 to 0.5LPM. Flow Meter raise and pressure reading drop to ‘0’.vehicle. To access this port for testing, remove the cap, then remove the Schrader Valve from inside the 
Service Port, using the supplied Schrader Valve Removal Tool. Important Note: The Schrader Valve has left-hand threads, turn clockwise to remove! Connect the supplied Service Port Adaptor to the Service Port. 

4．The Onboard Diagnostics on vehicles 1996 and beyond will determine if a leak exists, the following  trouble codes may be indicated to report the leak: 
P0442 for a .040 leak standard 
P0456 for a .020 leak standard. 

5．Using a scan tool, close the vent solenoids so that the EVAP system is closed to the atmosphere. 

6．Set up the machine 

7．Remove the fuel cap and begin to fill the system through the Service Port Adaptor until dense smoke is seen exiting the fuel neck. This procedure ensures that the system is full of smoke. Replace the fuel cap and continue pumping smoke into the system. 

8．Inspect under the hood for leaks using a bright halogen lamp. Raise the vehicle on a hoist and inspect the underside of the vehicle, tracing the route of the EVAP system. Note: It may be necessary to hang the Smoke Machine under the car so that it is visible to the operator .

9．As the system fills with smoke, and the pressure in the system equalizes, keep an eye on the Flow meter and the Pressure Gauge. If there is no leakage in the system the Pressure Gauge will go to its maximum pressure and the Flow meter will drop to zero. 

10．For trouble code P0456, the meter should stabilize at 0.1 LPM or less with the Smoke Machine. 

11．For trouble code P0442, the meter should stabilize at 0.5 LPM or less with the Smoke Machine. Note: These readings are approximate and are for reference only. 

12．Once the leak has been located and repaired, it is a good idea to repeat the above procedure using air only. It is not necessary to turn on the smoke to test for leakage using the flow meter. 

13．Replace Schrader Valve and cover. (Note: Valve is Left-hand thread.) 

14．Following are some generic OBD EVAP related codes:
P0443 Purge Control Valve Circuit 
P0444 Purge Control Valve Circuit Open 
P0445 Purge Control Valve Circuit Shorted 
P0446 Vent Control Circuit 
P0447 Vent Control Circuit Open 
P0448 Vent Control Circuit Shorted 
P0449 Vent Valve/Solenoid Circuit 
P0450 Pressure Sensor 
P0451 Pressure Sensor Range/Performance 
P0452 Pressure Sensor Low Input 
P0453 Pressure Sensor High Input 
P0454 Pressure Sensor Intermittent 
P0455 System Leak Detected (gross leak) 
P0456 System Leak Detected (very small leak) 
P0457 System Leak Detected (fuel cap loose/off) 
P0465 EVAP Purge Flow Sensor Circuit 
P0466 EVAP Purge Flow Sensor Circuit Range/Performance 
P0467 EVAP Purge Flow Sensor Circuit Low Input 
P0468 EVAP Purge Flow Sensor Circuit High Input 
P0469 EVAP Purge Flow Sensor Circuit Intermittent